Acupuncture For Dogs Gaining Acceptance

Introduction

In October 1985, North Carolina veterinarian William Martin signed up for a
class offered by IVAS, the International Veterinary Acupuncture Society. It
consisted of a four-day course once a month for four months and a
certification test at the end. The first part of the course covered the
Chinese history and theory of acupuncture, including yin and yang, the
different meridians and alarm points. He explains: "This did not relate at
all to veterinary medicine that I had learned in the Western world."
It was so foreign, in fact, that while traveling home after that first
session, Martin decided he would drop out of the course. Upon his return, he
learned that his 5-year-old Miniature Dachshund had been paralyzed for five
days with an intervertebral disc problem. His associate had tried the
typical Western treatments, but the dog's condition had not improved.
"I immediately thought I would really test the acupuncture stuff, so I
called one of the teachers that I had met at the school," Martin relates.
"Over the telephone we did some hands-on diagnostics. He told me where and
how to insert regular hypodermic needles in acupuncture points". Within four
hours, the Dachshund was standing. Martin calls it his first miracle of
acupuncture. "I immediately decided to continue with the course," he says.
Martin's story is just one in a substantial collection of anecdotes
attesting to acupuncture's effectiveness and leading to the growing
popularity of this ancient practice in the Western world.

In the following we will consider the philosophies of traditional Chinese
medicine (TCM), how and why many veterinarians now are using acupuncture,
the illnesses commonly treated with the technique and the competing
scientific theories that attempt to explain it.

An Ancient Art

In the narrowest sense, acupuncture is the application of small-gauge
needles to various points on the body for the purpose of eliciting
physiological responses in the treatment of almost any disease or condition,
and it seems especially useful for relieving pain. In a broader sense,
acupuncture is an ancient procedure used in TCM for the treatment of
whole-body conditions.

No one really knows when or where it started, but it has ancient roots. A
primitive acupuncture-like therapy was practiced in India some 7000 years
ago, and Stone Age humans used fishbone needles in China 5000 years ago.(1)
A large body of written information about the practice has survived the ages
and grown with time (2).

One of the earliest records of veterinary acupuncture was some 3000 years
ago in India for the treatment of elephants; however, the father of
veterinary acupuncture generally is considered to be Shun Yang (480 BC) from
China. The earliest American medical journal reference the authors could
find to acupuncture's use in human medicine was in 1836; however, European
writers of the late 1600s had published on the subject earlier (3,4).
Interestingly, Sir William Osler, who taught at Harvard and Yale and who
gave the world its current residency system of medical education, wrote of
acupuncture in 1892 (5). The procedure did not make it into the New England
Journal of Medicine until 1926, but these references were positive,
indicating that acupuncture could be an appropriate and useful medical
technique.

The procedure had been used for a variety of illnesses, but it began to fall
into obscurity in the 1940s in the United States as people turned to newly
emerging, potent, increasingly ailment-specific antibiotics to treat their
health problems.

In 1973, The American Medical Association Council of Scientific Affairs
declared acupuncture an experimental medical procedure. The increased
interest was due in no small part to Richard Nixon's efforts to improve
relations with China, where acupuncture was and still is a common practice.
In fact, James Reston, a member of Nixon's press corps in China, had surgery
using acupuncture as an anesthesia, which later was widely reported in the
press. By 1983, the American Osteopathic Association endorsed the use of
acupuncture as a part of medical practice.

Although acupuncture terminology still is largely based on philosophy, it
has become apparent that the scientific method has crept into the practice
with the result that the Western veterinary and medical establishments are
less able to discount acupuncture as a pastime of shamans.

Along with acupuncture's increased use in human medicine, veterinary
acupuncture has moved closer to mainstream practices. It also might be said
that the mainstream has moved closer to acupuncture, given that chapters on
acupuncture now are standard in many major veterinary texts. In addition,
acupuncture has become a big business worldwide. Today nearly 3 million
veterinary and medical practitioners, assistants and pharmacists are trained
in acupuncture. Of this number it is estimated that 150,000 are
veterinarians and 700,000 are paraveterinary assistants.

The IVAS has become the primary professional society for veterinary
acupuncturists in the United States, complete with a newsletter, a journal
and a World Wide Web site. http://www.ivas.org

An Eastern Perspective

To understand the basics of acupuncture it is important to comprehend the
tradition out of which it developed. In TCM, animals and humans are viewed
as tiny parts of an infinite universe subject to laws that govern all living
and nonliving things. The fundamental concept is that an animal or person
who follows these general laws of nature will reap the benefits of good
health

Acupuncture is not a stand-alone procedure in this framework; rather, it is
a part of a much larger medical system encompassing acupuncture, moxibustion
(the burning of moxa, a soft downy material, on the skin in the treatment of
various disorders), massage, breathing exercises, nutrition, herbal medicine
and even philosophy of life (6).

The goal of TCM is to diagnose imbalances in the life force (Qi), determine
their causes (etiology of the disease) and subsequently remove those causes
from the patient's environment (treatment). TCM views disease as an
imbalance between two polarities of Qi, yin (-) and yang (+). Within this
conceptual framework, acupuncture is used to "communicate" with body organs
and tissues through special channels or meridians. (There is no known
physiological equivalent to these energy pathways.) Health and healing in
this context is the integration and restoration of balance or harmony of Qi.
This view has been validated most recently by the discovery of the
relationship between brain chemistry and the immune system.
Some critics assert that Western medicine has a mechanistic view of health,
reducing disease and illness to specific cellular and molecular systems.
Outstanding medical advances have been made using the western viewpoint,
but, according to the Eastern tradition, the sum of the whole body still is
greater than its parts (6).

The effectiveness of many traditional acupuncture points has been determined
experimentally. Some 670 of them have survived the test of time. In her
book,
Between Heaven and Earth,
Harriet Beinfield proposed an analogy: "comparing an acupuncturist with a
Western veterinary or medical practitioner is similar to comparing a
gardener and a mechanic" (7) The gardener considers the totality of his or
her plants' environment (sunlight, density of planting, types and amounts of
fertiliser, temperature, water, etc.), whereas the mechanic searches to
replace or repair a dysfunctional component.

Theories In Practice

To illustrate the differences between the Eastern and Western philosophies
as they relate to veterinary medicine, let us follow a hypothetical canine
patient while she is being examined by a Western-trained clinician and
compare this to the procedures used by a practitioner of TCM.
An owner makes an appointment because her previously housetrained female dog
recently has started having "accidents" in the house, and she wants to rule
out a medical basis for the problem before she addresses it as a behavioral
issue. Both practitioners will be presented with the same symptoms, but
their methods of diagnostics will be completely different.

At the traditional vet's office, the dog is placed on the examining table,
and the vet asks questions about the frequency and quantity of urination.
While the owner is talking, the vet takes the dog's temperature and then
begins to perform a physical exam that includes listening to the heart and
bowel sounds and palpating the abdomen to check for any masses. The vet
suggests several lab tests to rule out a urinary tract infection and other
more serious diseases such as diabetes mellitus and diabetes insipidus. The
total focus of the appointment is to address the clinical symptoms.
In contrast, the vet trained in TCM asks questions about the dog's behavior
and previous history, which may be similar to the questions that the
traditional vet asks, such as: "Does the dog drink small or large amounts of
water at one time?" "When did the behavior start to occur?" and "How often
does it happen?"

The practitioner then goes on to ask what may seem to be unrelated
questions. Does it happen more frequently at a particular time of the day?
Does your pet choose to sleep in the sun, or does she seek out a cool, shady
spot? Does she like to lie on a soft surface, or does she prefer to sleep on
a firm supportive surface?

By now the owner may become impatient with answering detailed questions that
do not appear to have anything to do with the problem. But to a practitioner
of TCM, these questions are all valid because the patient is an individual
made up of physical, mental and emotional components. Questions are asked
about the dog's environment, her diet and favorite foods, stressors and
behavioral tendencies in an attempt to consider the "whole," just as the
gardener considers the totality of his or her environment.

While the owner is relating this information, the TCM practitioner observes
the animal's behavior in the exam room, checking her tongue, looking at the
dog's body shape and examining her skin and coat. The next part of the exam
includes listening to the chest with a stethoscope and taking note of the
breathing sounds and the character of her bark.

Just like the Western clinician, the TCM practitioner then palpates the
abdomen and limbs. In addition he or she will check the dog's pulse (which
provides information about organ systems and their locations on energy
pathways) and also will assess specific areas along the back, sides and
abdomen. In this tradition these diagnostic points correspond to specific
internal organs.

Finally, the TCM practitioner smells for specific odors emanating from the
eyes, nose, ears and mouth, which all play a part in the diagnostic process.

The acupuncture procedure

The lab tests suggested by the traditional Western vet rule out the serious
diseases associated with urinary incontinence, and the diagnosis indicates
oestrogen-responsive atrophy of the muscle of the bladder wall. The
allopathic vet probably will prescribe dosages of DES (diethylstilbestrol),
a synthetic oestrogen, to maintain bladder tone. Although DES is indicated
for the treatment of this kind of incontinence, it has many possible side
effects, including skin and liver problems and mammary tumours.

The difference between the allopathic system of treatment and the system of
TCM boils down to this: In Western medicine, the same disease or condition
normally is treated the same way in all patients; in TCM, the same condition
may and most probably will be treated differently in different patients
because the underlying causes may differ.

In TCM, frequent urination or incontinence usually stems from a weakness in
the kidney yang, which can cause an overall deficiency in the Qi.
Incontinence also is a function of the Qi associated with the spleen,
because it is believed the spleen keeps organs functioning properly and can
be stimulated to treat herniations, prolapses, etc.

Treatment most likely would consist of using needles to elicit a
physiological response by stimulating specific anatomic loci, in this case,
along the bladder, kidney and spleen meridians. The size of the animal and
the location of the points being treated determine the length of the needles
used. A short needle, about 0.5 inch, is used in points located over bony
areas such as the head or face. The most common size used is about 1 inch
long. For larger dogs or for deeper penetration, there are longer needles
available (1.5-2.0 inches). The needles are solid and very flexible, and
presterilised disposable ones are an option.

In the hands of a properly trained clinician, the animal does not appear to
have any discomfort at all. Inserting the needles to the proper depth and
angle, manipulating them during the treatment and removing them all are
techniques that can be achieved only through training and extensive
practice. This is why it is so important to consult a properly certified
veterinary acupuncturist.

In the general treatment of ailments, it may take four to eight sessions to
know if acupuncture therapy will be effective, although a response could be
seen even after the first treatment, and improvements often are noticed
after the third. Treatments may last from 10 seconds to 30 minutes and may
be recommended once or twice weekly. The long-term goal is always to fix the
number of treatments to the minimum required for effectiveness. This may be
every six months for arthritis or could be as often as every two months for
other conditions. Both frequency and duration of treatment depend on the
animal and the ailment.

What can be treated?

In addition to incontinence, acupuncture, in conjunction with TCM or the
body of Western medicine, may be considered supportive or adjunct therapy
for a vast array of other conditions. Notice of the procedure's versatility
was boosted with tests of its effectiveness in humans. The University of
California, Los Angeles, conducted the Acupuncture Research Project from
1973 to 1980. When the study began it was viewed as little more than a
curiosity-until the findings started trickling in.

At the outset, medical opposition was high and resolute, especially from
orthopedic surgeons. Public acceptance was more immediate than acceptance by
the medical community. Satisfied patients referred friends, and eventually
the waiting list was six weeks for an appointment. The UCLA Acupuncture
Research Project found various forms of acupuncture were effective for pain
relief for various orthopedic, obstetric and surgical procedures; treatment
of chronic pain; sensorineural hearing loss; compulsive disorders such as
obesity and tobacco and drug addiction; and bronchial asthma.

In other studies conducted on both humans and dogs, acupuncture was found to
be beneficial in cases where analgesics and anti-inflammatory medications
had been ineffective or had demonstrated side effects and in cases where
surgery was not recommended. For example, many practitioners are pleased
with the results of acupuncture in treating arthritis in both humans and
canines. One study found that acupuncture enhanced the efficacy of
antibiotic treatment for canine otitis crises (8).

Favorable acupuncture results have been reported in the treatment of many
other canine conditions, including the following: cardiovascular disorders
(9), chronic respiratory conditions (10), dermatological disorders (11),
gastrointestinal disorders (12), gynecological disorders (13),
immune-mediated disorders (14), male reproductive disorders (15),
musculoskeletal disorders (16), neurological disorders (17), reproductive
disorders (18), thoracolumbar and cervical disc disease (19, 20).
Deciding if your dog should be treated with acupuncture therapy often
depends on the dog itself and the condition afflicting it. "My attitude is
that with each and every animal with each and every condition, you look at
what the best comprehensive integrative approach is and develop a
therapeutic plan for that animal," explains Allen Schoen, DVM, co-editor of
"Complementary and Alternative Veterinary Medicine: Principles and Practice"
(Mosby 1998). "Sometimes acupuncture is used as a last resort; at other
times it may be chosen as the first approach [for example] if surgery would
have potential complications, and only if acupuncture didn't work would you
consider surgery."

According to Schoen, before you decide on any treatment approach, it is
important to get a good diagnosis and then look at all the options,
including acupuncture and those offered by conventional medicine. He
suggests obtaining a traditional veterinarian's opinion and diagnosis before
deciding if acupuncture should complement the treatment of veterinary
disorders.

Schoen explains there are some situations in which acupuncture may not be
effective or should not be used. For example, extremely anxious pets
sometimes can be so excitable that the release of their own adrenaline
counteracts acupuncture's benefits. Owners also should be aware of specific
medical complications. "[Acupuncture] normally does not interfere with other
conventional approaches," he explains, "but certain medications, such as
corticosteroids, can decrease the effectiveness of acupuncture. [In
addition,] you want to be exceedingly careful in using acupuncture with
cancer because selecting the wrong points can actually accelerate the cancer
growth."

Because of this, in Schoen's opinion, only someone who is trained in both
veterinary medicine and veterinary acupuncture should treat your pet if you
are considering acupuncture as an alternative therapy.

How does it work?

Now that we've explored the philosophy behind acupuncture and some of those
theories in practice, you may be wondering about the science behind the
technique and if there is any clinical evidence of efficacy that will
withstand modern Western scrutiny. The answer is a qualified "yes."
Some modern practitioners feel that at its most basic level, acupuncture is
applied neurophysiology. We may one day be able to explain acupuncture in
those terms. Today, Western science still has a poor understanding of its
mechanisms. However, the body of anecdotal evidence supporting its
effectiveness is overwhelming. One only has to watch surgery under
acupuncture anesthesia to comprehend that something significant and
unfamiliar to the Western way of thinking is going on. The World Health
Organization concluded in 1979 that "Acupuncture is clearly not a panacea
for all ills but sheer weight of evidence demands that acupuncture must be
taken seriously as a clinical procedure of considerable value."

Acupuncture has had field tests, too. Some 4000 years of application on a
sizeable segment of the world's population makes acupuncture arguably the
most widely practiced and thoroughly tested medical technique in history
(21).

In 1998 the American Veterinary Medical Association took this position in
its "Guidelines for Complementary and Alternative Veterinary Medicine"
approved by the American Veterinary Medical Association: "Veterinary
acupuncture and acutherapy are considered an integral part of veterinary
medicine. These techniques should be regarded as surgical and/or medical
procedures under state veterinary practice acts. It is recommended that
educational programs be undertaken by veterinarians before they are
considered competent to practice veterinary acupuncture."

Besides acupuncture courses that currently are available, there also are
some popular textbooks including Veterinary Acupuncture by Alan Klide and
Shiu Kung (22). A more recent book is Veterinary Acupuncture: Ancient Art of
Modern Medicine (23). For a more general, TCM text suitable for the
layperson, we suggest Four Paws, Five Directionsby Cheryl Schwartz (24).

Scientific explanations

To understand how the theories of acupuncture translate to pain relief, it
is necessary to know a little about how pain is transmitted and experienced
by the body. Pain is a double-edged sword. On one hand it protects us from
damage by warning us of harmful situations, but in chronic conditions it is
as debilitating as the disease process itself. Abnormal chronic pain states
are thought to result from damage within the pain pathway itself, either in
the peripheral nerves or the central nervous system.

The normal protective pain mechanism, which warns of impending or actual
damage, is activated by mechanical, heat or other noxious stimuli impinging
on pain receptors that then transmit the pain impulse to the CNS through
afferent nerve fibers. Unlike other sensory input, pain recognition is
subjective, and previous experiences can influence one's perception of it.
This is true of dogs also; some breeds generally are more stoic than others.
Pain perception also is a function of sex as females have shown a much
higher pain threshold.

How is this possible? The body has its own pain-suppression mechanisms. This
built-in analgesic system depends on the presence of endogenous opiates,
which include endorphins. Most Western theories suggest acupuncture either
instigates the production of these opiates or blocks pain transmission.
Not unexpectedly, when East meets West and when philosophy meets science,
confusion undoubtedly will occur. Similarly, when old meets new, questions
of quackery from both sides will arise. Even in light of this, some Western
theories have sought to explain the reported pain-relief benefits of
acupuncture. One of those is the gate or inhibition theory, which proposes
that pain is blocked by stimulating sensory neurones that travel faster than
those that transmit pain (25).

Several types of nerve fibers are involved in pain transmission. As
mentioned before, there are three types of pain receptors. Stimuli received
from the mechanical and thermal pain receptors are transmitted over large
myelinated A-delta fibers at a speed close to 30 meters per second. Impulses
received by the other type of receptors travel much more slowly on the C
fibers at the rate of 12 meters per second. A-alpha fibers, which are
necessary for the proper perception of where we are in three-dimensional
space, i.e., where our feet are located, are found in muscles and joints.
Alpha-beta neurones are involved in feeling light touch and the bending of
hairs. A-alpha and A-beta fibers transmit nerve impulses many times faster
than A-delta or C fibers. AP stimulation may induce non-painful sensory
information that travels along A-beta fibers. When the information reaches
something called the inhibitory interneurones, it shuts a nerve transmission
"gate" that blocks the conduction of the slower travelling A-delta and C
fibres.

The gate theory may account for some part of the mechanism of acupuncture
analgesia, but it does not explain the delayed effects of treatment or the
results of cross-circulation studies (studies in which the blood circulation
of two animals were connected, and the procedure performed on one produced
results in both). These factors are much better explained by the competing
humoral theory, which states that acupuncture instigates the release of
endogenous (developed from within) opiates that produce a self-induced
analgesia (26). In other words, acupuncture may work by stimulating specific
afferent nerves, which in turn activate a spinal cord center, a mid-brain
center and the hypothalamus/anterior pituitary unit. All three of these have
been shown to block pain transmission by means of endorphins and/or other
analgesic neurotransmitters. Some believe that acupuncture's pain relief
derives from a combination of the neurological and humoral explanations
(27).

Another theory suggests acupuncture may have localized vasodilatation
effects, which would explain the procedure's benefits specific to
musculoskeletal disorders. Dilated blood vessels are better able to
eliminate pain-producing substances such as bradykinin (a substance released
from blood plasma by some snake venoms and certain other enzymes that lowers blood pressure and triggers pain), prostaglandins and other inflammatory
products.

Another explanation is the autonomic theory, which maintains that internal
organs can be stimulated by external acupuncture points that selectively
excite parasympathetic and sympathetic nerves regulating the autonomic
nervous system (28).

The bioelectric theory tops off this confusing mix of theories. It suggests
acupuncture meridians are like direct current pathways and acupuncture
points function as amplifiers. What these theories have in common is the
stimulation of acupuncture points via insertion of small needles,
application of pressure, cupping (suction) and application of heat through
moxibustion (which can be used to raise the temperature of the needles), or
infrared, laser or electrical stimulation.

Interpreting scientific studies

Although acupuncture's successes have been tested in practice throughout
history and have attracted a following of practitioners and patients,
rigorous scientific acupuncture trials have yielded mixed results.
Unfortunately, there is no tight control of patient
suitability/responsiveness or practitioner expertise, and even studies with
statistical analyses may be flawed because of inappropriately small or
non-random samples. One well-known text used to teach biostatistics to
medical and veterinary students maintains that in general, major errors are
made in the statistical treatment of data in at least 50 percent of all the
papers submitted for peer review in journals (29). Significant efforts have
been made to improve the validity of statistical inferences drawn in journal
articles.

Flaws in the statistical treatment of experimental data especially are
damaging in clinical studies. Veterinarians and physicians consider their
treatment options (including acupuncture) based on the outcomes of clinical
trials. If erroneous conclusions are drawn from experimental data, patients
may be exposed to unnecessary risks, discomfort and expense. Worst of all,
more efficacious treatment may be delayed or not even attempted.
It is therefore important to read the claims made about acupuncture with a
discerning eye. This is not to say the use of statistics is an invalid and
unrecognized strategy, but be aware that errors can be made in both the
experimental design and in the conclusions drawn, so what you read always
must be questioned with those caveats in mind.

Some detractors absolutely are convinced that acupuncture is little more
than "nonsense with needles" and hope it will pass from the contemporary
scene and fall into disuse like other obsolete treatments such as purging,
leeching and bleeding (30). A lack of evidence, however, is not proof that a
treatment is not effective. In the words of a colleague, "If there are no
benefits derived from the process, acupuncture would have to be categorized
as one of the longest playing scams in the history of mankind (31)".

* * * * *

We have barely scratched the surface of this complex and controversial
subject. However, we hope you take away from this article the following:

1) Acupuncture can be a beneficial adjunct therapy, but it has its own set
of dangers, not the least of which is the possibility of a lack of diagnosis
or misdiagnosis of problems that routinely would be identified in Western
veterinary medicine;

2) Anecdotally, acupuncture works, so if you do choose to take your dog to a
veterinary acupuncturist, take it to someone who is having success in
treating similar problems;

3) if Western medicine has failed your dog, there is little to lose in
trying acupuncture. But do not expect it to be the miracle cure; it is not a
panacea. In the hands of some practitioners, however, it has produced
successes that are hard to explain using the principles of our current
scientific and medical knowledge.

John Cargill, Retired Officer of Marines, statistician and science writer,
grew up with Airedale Terriers and American Foxhounds but lives on a boat in
Florida with his 5-year-old Akita, Ch. Kimdamar's Jumbalaya Jazz (call name
"JJ").

Susan Thorpe-Vargas has a doctorate in immunology and has an extensive
chemistry and lab background. She has been involved in numerous
Environmental Protection Agency cleanup sites. Susan also raises and shows
Samoyeds.

References:

1. Acupuncture was first discovered in China between 2696 BC and 2598 BC by
Huang Di, "The Yellow Emperor," who was the third great emperor of China.
Acupuncture was initiated and discovered during the Yellow Emperor's reign,
and the surviving document is the "Yellow Emperor's Classic of Internal
Medicine," translation by Ilza Veith, University of California Press,
Berkeley, Calif. 1993. This Yellow Emperor's classic text is the basis for
acupuncture and was the current book of medical care in the 2600s BC.